4IX2 | pdb_00004ix2

Inosine 5'-monophosphate dehydrogenase from Vibrio cholerae, deletion mutant, complexed with IMP

• PDB DOI: https://doi.org/10.2210/pdb4IX2/pdb
• Entry: 4IX2 supersedes: 4FF0

• Classification: OXIDOREDUCTASE
• Organism(s): Vibrio cholerae O1 biovar El Tor str. N16961
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2013-01-24 Released: 2013-02-06 
• Deposition Author(s): Osipiuk, J., Maltseva, N., Makowska-Grzyska, M., Gu, M., Anderson, W.F., Joachimiak, A., Center for Structural Genomics of Infectious Diseases (CSGID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.15 Å
• R-Value Free: 
  0.258 (Depositor), 0.250 (DCC) 
• R-Value Work: 
  0.208 (Depositor), 0.210 (DCC) 
• R-Value Observed: 
  0.211 (Depositor) 

Starting Model: experimental

Literature

Inosine 5'-monophosphate dehydrogenase from Vibrio cholerae, deletion mutant, complexed with IMP.

Osipiuk, J., Maltseva, N., Makowska-Grzyska, M., Gu, M., Anderson, W.F., Joachimiak, A.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C4  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Cyclic - C4  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 154.54 kDa 
• Atom Count: 10,714 
• Modeled Residue Count: 1,332 
• Deposited Residue Count: 1,464 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Inosine-5'-monophosphate dehydrogenase	A, B, C, D	366	Vibrio cholerae O1 biovar El Tor str. N16961	Mutation(s): 0  Gene Names: guaB, VC0767, VC_0767 EC: 1.1.1.205
UniProt
Find proteins for Q9KTW3 (Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)) Explore Q9KTW3  Go to UniProtKB:  Q9KTW3

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
IMP	E [auth A], F [auth B], H [auth C], K [auth D]	INOSINIC ACID C10 H13 N4 O8 P GRSZFWQUAKGDAV-KQYNXXCUSA-N
K	G [auth C], I [auth C], J [auth D], L [auth D]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.15 Å
• R-Value Free:  0.258 (Depositor), 0.250 (DCC) 
• R-Value Work:  0.208 (Depositor), 0.210 (DCC) 
• R-Value Observed: 0.211 (Depositor) 

Diffraction Data: https://doi.org/10.18430/m34ix2

Space Group: C 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 167.18	α = 90
b = 167.158	β = 90
c = 93.082	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
SBC-Collect	data collection
HKL-3000	data reduction
HKL-3000	data scaling
MOLREP	phasing
HKL-3000	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-02-06 
Deposition Author(s): Osipiuk, J., Maltseva, N., Makowska-Grzyska, M., Gu, M., Anderson, W.F., Joachimiak, A., Center for Structural Genomics of Infectious Diseases (CSGID)
• This entry supersedes: 4FF0

Revision History  

• Version 1.0: 2013-02-06
  Type: Initial release
  
• Version 1.1: 2017-08-02
  Changes: Source and taxonomy
• Version 1.2: 2017-11-15
  Changes: Refinement description
• Version 1.3: 2023-09-20
  Changes: Data collection, Database references, Derived calculations, Refinement description